subject: Genetically Based Causes of Hair Loss With a Simple Explanation [print this page] A lot of people suffer from hair loss or baldness which results in the frustration and confusion in most of these people. It may sometimes lead to negative side-effects on self-confidence and influence their character in general. Hence, let us discuss in brief the causes of baldness as well as some solutions for hair loss. Balding is basically a hereditary condition which is genetically caused and inherited to the successive generations through recessive genes that don't appear in all progenies. Those patterns of genes which cause the hair loss are carried on the sexual known chromosome X that is found in females and males which carry all genetic traits like the formation of gonads in both sexes as well as other characteristics like the growth of hair. Those genes that cause the growth of hair may be found in the form of dominant genes (A) for example or the recessive form (a). The dominant one causes the normal growth of hair and the recessive gene results in the hair loss or baldness. As mentioned previously these genes are carried on the sex chromosome X and are sorted to the gametes of both male and female during formation of gametes. It was found that males possess one sex chromosome X beside another one Y so we can refer it to the genotype XY + 21 (21 denotes to other chromosomes called somatic chromosomes but they don't mind us in this condition of hair loss) and contrarily females have two X chromosomes so the genotype of female is XX+21. From all the information mentioned above we can conclude that males can only have one gene A or a as they only contain one X chromosome so they may be either normal male (normal hair) or abnormal male (bald or suffer from hair thinning). On the other hand females have three possibilities. The normal one (each X chromosome carry A gene) or abnormal (each X carry a) or the last and the more dangerous condition which causes the continuous heredity of the genes causing the baldness (a). This condition is known as carriers or heterozygous in which one chromosome X carry gene A and the other one carry a so they transfer this genetic condition baldness to their descendants. So females are participating in the transferring of the recessive gene which causes the genetic disease more than males. I hope my information, though technical, has benefited you.
Genetically Based Causes of Hair Loss With a Simple Explanation
